headset / fork movement

Workshop tales, trials and disasters.
Maintenance tips, techniques and myths.
Technical discussion, description and outright lies

headset / fork movement

Postby hannos » Tue Oct 02, 2012 9:21 pm

My bike has a little bit of play in the headset.
It seems to move a tiny bit inside the frame where the fork goes through. If I hold the frame I can wobble the forks inside the headset a bit.

Does that even make sense? (Not sure how to explain it)


I'm assuming I'm needing some new bearings for it?
2010 BMC SLC01
Image
User avatar
hannos
 
Posts: 4020
Joined: Fri Mar 19, 2010 10:18 am
Location: Sydney

by BNA » Tue Oct 02, 2012 9:31 pm

BNA
 

Re: headset / fork movement

Postby bychosis » Tue Oct 02, 2012 9:31 pm

Might just neeed adjusting. If it is still turning smoothly adjustment is more likely.
bychosis (bahy-koh-sis): A mental disorder of delusions indicating impaired contact with a reality of no bicycles.
User avatar
bychosis
 
Posts: 2199
Joined: Sat Jan 14, 2012 12:10 pm
Location: Lake Macquarie

Re: headset / fork movement

Postby Mulger bill » Tue Oct 02, 2012 11:40 pm

What he said. Sheldon or the choob for advice. :wink:
...whatever the road rules, self-preservation is the absolute priority for a cyclist when mixing it with motorised traffic.
London Boy 29/12/2011
User avatar
Mulger bill
Super Mod
Super Mod
 
Posts: 25683
Joined: Sun Sep 24, 2006 2:41 pm
Location: Sunbury Vic

Re: headset / fork movement

Postby hannos » Mon Oct 08, 2012 8:01 pm

OK so I followed the advice in this video
This information corresponds with what is in Zinn & the art of road bike maintenance.

I still seem to have some play when I hold the brake and rock the bike forwarsd and back.

Any other suggestions???

do I pull the entire thing apart, clean and re-grease it??
2010 BMC SLC01
Image
User avatar
hannos
 
Posts: 4020
Joined: Fri Mar 19, 2010 10:18 am
Location: Sydney

Re: headset / fork movement

Postby Nobody » Mon Oct 08, 2012 8:31 pm

Take your top cap off and make sure the combination of stem and spacers is higher than the steerer tube by at least 3mm. If < 3mm you'll end up just tightening the top cap into the steerer (bottoming out) rather than pulling the steerer up while pushing the spacer stack & stem down toward the head tube. See from time 05:40 on video below.

http://www.5min.com/Video/How-to-Instal ... t-66769459
Nobody
 
Posts: 6634
Joined: Thu Sep 18, 2008 12:10 pm
Location: Sydney

Re: headset / fork movement

Postby hannos » Mon Oct 08, 2012 9:07 pm

took the entire thing apart, re-greased and put it back together.

Tightened it all up and the movement was *almost* gone. Gave it a tiny bit more tightening and Presto! No more movement :)

and yes, there's heaps of space between the top spacer and the steerer tube
2010 BMC SLC01
Image
User avatar
hannos
 
Posts: 4020
Joined: Fri Mar 19, 2010 10:18 am
Location: Sydney

Re: headset / fork movement

Postby gururug » Tue Oct 09, 2012 9:53 am

Sounds like something is a bit out of shape. Keep a close eye on it. Frequent re-tightening will extend it's life but potentially damage the head tube.
User avatar
gururug
 
Posts: 1504
Joined: Thu Jan 25, 2007 11:05 pm


Return to The Shed

Who is online

Users browsing this forum: No registered users



Popular Bike Shops
Torpedo 7 Torpedo7 AU
Ground Effect Ground Effect NZ
Chain Reaction Cycles CRC UK
Wiggle Wiggle UK
Ebay Ebay AU

“Bicycles BNA Twitter
“Bicycles BNA Facebook
“Google+ BNA Google+
“Bicycles BNA Newsletter

> FREE BNA Stickers
> BNA Cycling Kit